dramatists such as Aeschylus, sophocles, euripides
http://homepage.mac.com/cparada/GML/
homer - IMPORTANT SOURCE - two books "the Iliad" + "the odyssey"
mythology - linear a + Linear B clay tablets, archaeological evidences, such as from statues, statuettes, figurines and wall paintings
herodotus - wrote about asia minor and greek islands
Pausanias wrote of various myths and legends associated with regions and cities throughout the Greek world.
thats all i can think of off the top of my head sorry but i hope thats a bit of help!